Please help with seats

Looking to see if anyone knows what newer style seats will fit in a 1973 Mustang fastback, looking for something that has more support , maybe a little taller with power options, maybe swapping out for some truck seats or something of that nature. Is it just a matter of making sure they are the same width or does there have to be some adjusting of they rails no matter what. Thanks all for your help on this
 
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